fix: simplify fal scale adjust guide marks

app/api/canvas/local-edit/route.ts

@@ -1380,20 +1380,8 @@ function buildScaleAdjustFalPhotoGuideSvg(params: {
   const { width, height, regions, scalePercent } = params;
   const minSide = Math.max(1, Math.min(width, height));
   const strokeWidth = Math.max(3, Math.round(minSide * 0.005));
-  const fontSize = Math.max(16, Math.round(minSide * 0.022));
-  const labelPadX = Math.round(fontSize * 0.48);
-  const labelHeight = Math.round(fontSize * 1.35);
   const currentColor = "#00b8d4";
   const finalColor = "#2563eb";
-  const label = (text: string, x: number, y: number, color: string) => {
-    const labelWidth = Math.round(text.length * fontSize * 0.74 + labelPadX * 2);
-    const left = clamp(x, 6, Math.max(6, width - labelWidth - 6));
-    const top = clamp(y, 6, Math.max(6, height - labelHeight - 6));
-    return `
-      <rect x="${left}" y="${top}" width="${labelWidth}" height="${labelHeight}" rx="${Math.round(labelHeight * 0.22)}" fill="${color}" opacity="0.92" />
-      <text x="${left + labelPadX}" y="${top + Math.round(labelHeight * 0.68)}" fill="#ffffff" font-size="${fontSize}" font-family="Arial, Helvetica, sans-serif" font-weight="800">${escapeXml(text)}</text>
-    `;
-  };
 
   const regionSvg = regions
     .map((region) => {
@@ -1407,8 +1395,6 @@ function buildScaleAdjustFalPhotoGuideSvg(params: {
         <rect x="${target.left}" y="${target.top}" width="${target.width}" height="${target.height}" rx="${radius}" fill="${finalColor}" opacity="0.14" />
         <rect x="${source.left}" y="${source.top}" width="${source.width}" height="${source.height}" rx="${radius}" fill="none" stroke="${currentColor}" stroke-width="${strokeWidth}" stroke-dasharray="${strokeWidth * 2} ${strokeWidth * 1.4}" opacity="0.95" />
         <rect x="${target.left}" y="${target.top}" width="${target.width}" height="${target.height}" rx="${radius}" fill="none" stroke="${finalColor}" stroke-width="${Math.max(3, Math.round(strokeWidth * 1.25))}" opacity="0.98" />
-        ${label(`CURRENT ${region.index}`, source.left + strokeWidth, source.top + strokeWidth, currentColor)}
-        ${label(`FINAL ${region.index}`, target.left + strokeWidth, target.top + strokeWidth, finalColor)}
       `;
     })
     .join("");
@@ -1655,11 +1641,11 @@ function buildScaleAdjustCoordinatePrompt(
       "Interior furniture photo edit.",
       `Return one realistic photo with the same camera frame and pixel size as input image 1: ${sourceSize.width} x ${sourceSize.height} px.`,
       "Input image 1 is the source photo. Input image 2 is a marked copy of the source photo for location guidance only and should not appear in the final photo.",
-      "The guide labels CURRENT as the existing furniture box and FINAL as the requested final footprint.",
+      "In the guide, the cyan dashed box marks the existing furniture area and the blue solid box marks the requested final footprint.",
       "Resize only the furniture subject indicated by each current box. Keep the camera, room layout, walls, windows, floor, rug, sofa, lamp, text, and background stable.",
       "Preserve the furniture identity, material, perspective, objects on top, and natural aspect ratio.",
       "For a smaller final footprint, show the furniture smaller and blend newly visible floor, rug, wall, window area, shadow, and background around it naturally. For a larger final footprint, scale the same furniture proportionally with natural edges and contact shadows.",
-      "Return a clean photo without guide marks, labels, boxes, arrows, overlays, patch edges, color mismatch, or full-frame zoom.",
+      "Return a clean photo without guide marks, boxes, arrows, overlays, patch edges, color mismatch, or full-frame zoom.",
       cropLines ? `${cropLines}` : "",
       "",
       "Region instructions:",
@@ -2054,7 +2040,7 @@ export async function POST(request: NextRequest) {
         scaleAdjustPromptStrategy: isScaleAdjustOperation
           ? useScaleAdjustCoordinateGuide
             ? useFalScaleAdjustCoordinatePrompt
-              ? "fal-safe-marked-photo-guide-no-old-crop-v43-one-shot"
+              ? "fal-safe-marked-photo-box-guide-no-old-crop-v44-one-shot"
               : "same-name-zoomed-coordinate-map-no-old-crop-v42-one-shot"
             : "locked-plate-semantic-target-map-no-old-crop-v15"
           : undefined,